ST44材料化學成分---請教

何錦添

請問誰知道管直徑8X0.9.有什么化學成份,機械性能,抗拉強度,等等的資料,

伊凡

1. Chemical composition

Code number for material	Chemical composition(%)
	C	P	S	N	Si	Mn	Al
USt37.2	0.21Max	0.065Max	0.065Max	0.009Max	-	-	-
RSt37.2	0.19Max	0.060Max	0.060Max	0.010Max	-	-	-
St37.3	0.19Max	0.050Max	0.050Max	-	-	-	*)
St44.2	0.24Max	0.060Max	0.060Max	0.010Max	-	-	-
St44.3	0.23Max	0.050Max	0.050Max	-	-	-	*)
M22	0.16 to 0.23	0.040Max	0.040Max	-	0.28Max	0.40 to 0.75	0.02Min
QStE340N	0.18Max	0.035Max	0.035Max	-	9.53Max	1.56Max	-

*)Contains a sufficient quantity of aluminium or other nitrogen-fixing elements

[ 本帖最后由 ivantse 于 2008-1-11 12:53 編輯 ]

伊凡

2. Mechanical property

Code number for material 8 X7 |* Q4 Z7 O4 V3 y0 d	Mechanical properties for conditions on delivery
	NBK (nominalized ) 1) 4 L$ @7 }7 j. \) C			BKM (welded and sized) ( o1 h0 A9 K  G# [
	Tensile strength Rm N/mm2	Yield point ReH N/mm2 min. ) ]- ]; U; M9 D" ^	Elong-gation at rupture A5% min. " F2 V. q: q+ I7 }% Z	Tensile strength Rm N/mm2 5 l, U  e% T  c+ |	Yield point ReH N/mm2 min. 4 K, M. E1 n9 z* y- ]& }, P	Elong-gation at rupture A5% min. 3 M" Y" N( H& M) t" @* H7 d
USt37-2 ; I3 m( n/ u# F$ }% b: i+ L	360 to 470 0 ~: l' Q- y+ l	235	23 + j9 M$ Q) @! L; J2 P7 M	390	250	7
RSt37-2
St37-3 8 v: h  M5 F* t; J3 U
St44-2 ( O  U- V& g/ L	430 to 540	275 ; b$ e" y5 i5 P" c: r1 b9 l	21 0 I* l' h# y" L# c	460 + N8 }3 W2 y' b7 @  @/ b' M9 p	290 3 [# }" y& I' m  g+ @# n3 G9 u	6 8 m' g: q; x( v0 X8 T
St44-3
M22 & ?0 t# A: G( G9 r1 y- E	420Min	290 ; O! E; o+ M+ Q8 B2 ~  P	25	-	-	- 9 |5 O, w& u7 N9 U
QStE340 N	460 to 580 ! I' r( Y& ^/ e5 b& _7 W	340 * y; h4 B0 q" o4 W" V4 L	27 : y) `6 {2 b) v" e$ U+ [1 W	-	-	-

[ 本帖最后由 ivantse 于 2008-1-11 12:57 編輯 ]